The Armenian whiskered bat (Myotis hajastanicus), also known as the Hajastan myotis or the Armenian myotis, is a species of bat from the family Vespertilionidae. The Armenian whiskered bat was formerly included as a part of the whiskered bat, but was considered distinct in 2000[2] as a result of morphologic comparison.

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It was described as a new subspecies of the whiskered bat in 1939.[3]
In 2000, Benda and Tsytsulina published that it should be considered a full species based on its physical characteristics.[4]
In 2016, Dietz et al. argued that the Armenian whiskered bat was not morphologically or genetically distinct enough to be considered a full species; instead, they argued that it is synonymous with Myotis aurascens (which is itself sometimes considered synonymous with Myotis davidii).[5]
However, as of 2018 the Integrated Taxonomic Information System still considers the Armenian whiskered bat as a full species.[6]
Its species name "hajastanicus" means "of Hayastan," which is an alternate name for Armenia.[7]

There were no records of the Armenian whiskered bat from the 1980s until 2013[1] and the species has only ever been located in the Sevan Lake basin in Armenia.[2]
In 2013, 11 pregnant Armenian whiskered bats were captured near Lake Sevan.[5]
Before the 2013 documentation, it was considered possibly extinct.[1]
Due to its imperiled status, it is identified by the Alliance for Zero Extinction as a species in danger of imminent extinction.[8]